Airtac SC125-160 Standard Cylinder SC125X500H
The AirTAC Airtac SC125-160 Standard Cylinder SC125X500H is a genuine double-acting standard air cylinder with a Ø125mm bore and 500mm stroke, PT1/2 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ125 mm
- Stroke500 mm
- Port sizePT1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 28 mm
- No minimum order. A single piece can be ordered.
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About the Airtac SC125-160 Standard Cylinder SC125X500H
The AirTAC SC125X500H is a double-acting single-rod tie-rod cylinder with a 125 mm bore and 500 mm stroke, factory-equipped with Viton (FKM) seals for reliable operation in high-temperature environments up to 150 °C. At 0.5 MPa air pressure it generates 6136 N of push force and 5734 N of pull force on the 32 mm diameter rod, making it a capable actuator for medium-heavy industrial tasks.
This model belongs to the ISO 6430 class of big-bore cylinders, with a speed range of 30-500 mm/s and an adjustable air cushion of 28 mm at each end to decelerate the piston smoothly. The body length A is 203 mm, giving a total extended length of approximately 703 mm. Ports are PT1/2 with an M27x2 rod thread, and the proof pressure is 1.5 MPa.
Airtac SC125-160 Standard Cylinder SC125X500H Technical Specifications
| Model | Airtac SC125-160 Standard Cylinder SC125X500H |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Stroke | 500 mm |
| Acting type | Double acting |
| Port size | PT1/2 |
| Rod thread | M27×2 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Adjustable, 28 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SC series datasheet. Operating pressure 0.15–1.0 MPa, proof pressure 1.5 MPa, temperature −20 to +70 °C. Confirm against the product label before installation. Thread options: PT (standard) / G.
Theoretical Output Force (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (approx.) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SC125-160 Standard Cylinder SC125X500H
| SC | Standard tie-rod cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×500 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related variants: SCD (double rod), SCJ (adjustable stroke), SCT (multi-position). Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Where the Airtac SC125-160 Standard Cylinder SC125X500H Is Used
Heavy Press & Clamping
With over 11000 N of force available at 0.9 MPa, the SC125X500H excels in hot-press clamping, die-casting extractors, and forming jigs where both high force and elevated ambient temperatures are present.
High-Temperature Material Handling
The Viton seals allow this cylinder to operate in ovens, dryers, or near heat sources up to 150 °C, making it suitable for pushers, diverters, and lift gates in hot manufacturing cells.
Tie-Rod Replacement
A direct dimensional match for other AirTAC SC125 tie-rod cylinders with the H suffix. The 32 mm rod and PT1/2 ports ensure straightforward plumbing and mounting interchangeability in existing high-temperature machinery.
Is the Airtac SC125-160 Standard Cylinder SC125X500H the Right Cylinder?
Choose the SC125 bore when your application needs between roughly 5000 N and 11000 N of push force at standard shop air pressures—stepping down to an SC100 bore provides 3927 N at 0.5 MPa, while stepping up to an SC160 bore provides 10053 N. For this 500 mm stroke, ensure the load is guided and free of side forces; if side loading is unavoidable, add an external guide rail or consider a guided cylinder to protect the rod bearing from bending stress.
To replace an existing cylinder, match five points exactly: 125 mm bore, 500 mm stroke, PT1/2 port thread, basic mounting (no bracket), and no magnet. The Viton seal suffix H means the replacement must also be rated for 0-150 °C if the environment requires it.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SC125-160 Standard Cylinder SC125X500H FAQ
At 0.7 MPa operating pressure, the theoretical push force is 8590 N and the pull force on the 32 mm rod is 5734 N. The maximum operating force at 0.9 MPa is 11045 N push.
No. The SC125X500H is a double-acting cylinder and will drift or drop if air pressure is lost or the directional valve is centered. To hold a load safely without live pressure, you must add an external rod lock, a mechanical brake, or a pilot-operated check valve.
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